When ________,the museum will be open to the public next yea

来源：学生作业帮编辑：拍题作业网作业帮分类：英语作业时间：2024/05/18 18:13:53

When ________,the museum will be open to the public next year
A.completed
B.completing
C,being completed
D.to be completed
我想问问,A,C有什么区别?/

正确答案是A.
When completed相当于When the museum is completed.
做这一类题目时,最容易误选的是C,因为一般总认为被动形式是be加过去分词,其实这种想法并不正确.
当过去分词作状语、定语等修饰语时,过去分词本身就表示被动.若用being done结构,则常常表示“正在被”之意.
以下是高考中曾考到过的：
The thief was brought in, with his hands ______.
A. being tied B. tied
好多考生误选A.这是因为他们总感觉到being tied才是充分被动,却不知道过去分词tied已经是被动的含义了.若说being tied则反倒有正在被绑的意思,逻辑上有错误了.
当然,如果是动词形式作名词性的结构,表示被动时则理所当然地要用being done形式.例如：
Being teased in public is a terrible thing. 在分开场合被人嘲笑是一件很糟糕的事.
由于Being teased...作主语,故不可以用teased,因为过去分词是不可作主语或其他名词性成份的.
补充说明一下：选项D的to be completed是一种未来式,如说n.+to be completed,多表示“有待完成的n.”放在原句中明显不符.

When ________ ,the museum will be open to the public next ye 1 When_______,the museum will be open to the public next yea When ___,the museum will be open to the public next year.A.c When ____,the museum will be open to the public next year. ____,the museum will be open to the public next year When ___,the museum will be opened to the public The new training center will be open to the public when it n when ____,the library will be open to the public on 2013. the treasures of the museum will open___the public next sund Now the Forbidden City is open to public _____a museum. When ___(finish),the museum will be opened to us 1.when__ ,the new cinema will be open to the public soon.